Search results for "SIM"
showing 10 items of 10139 documents
Expérimentation par voie informatique de la mobilité résidentielle
2008
La mobilité résidentielle est un sujet complexe qui nécessite d'appréhender les interactions entre le " couple " ménage-logement. Les expérimentations in vivo et in vitro n'étant pas possible sur ce domaine d'étude, nous proposons de réaliser un modèle de simulation de la mobilité résidentielle à des fins d'expérimentation in silico. Pour ce faire, VisualSimores, un logiciel multi-formalisme associant automate cellulaire, système multi-agents et formalisme mathématique a été conçu.
An EEMD Aided Comparison of Time Histories and Its Application in Vehicle Safety
2017
In the context of signal processing, the comparison of time histories is required for different purposes, especially for the model validation of vehicle safety. Most of the existing metrics focus on the mathematical value only. Therefore, they suffer the measuring errors, disturbance, and uncertainties and can hardly achieve a stable result with a clear physical interpretation. This paper proposes a novel scheme of time histories comparison to be used in vehicle safety analysis. More specifically, each signal for comparison is decomposed into a trend signal and several intrinsic mode functions (IMFs) by ensemble empirical mode decomposition. The trend signals reflect the general variation a…
Theoretical and experimental study of novel types of solid oxide fuel cell electrodes
2016
Master's thesis Renewable Energy ENE500 - University of Agder 2016 Solid oxide fuel cells (SOFCs) have the potential to become one of the efficient and costeffective system for direct conversion of a wide variety of fuels to electricity. The performance, stability and durability of SOFCs depend strongly on the materials used for the fabrication of electrodes as well as the fabrication process. For anode supported SOFCs, the tape casting method has been the de facto standard for constructing cell components. Furthermore, organic solvents such as ethanol, propanol, terpineol and poly-ethers are generally used in industrial tape casting as the solvent medium to make the chemical slurries out o…
On the Finite Element Modeling of the Lumbar Spine: A Schematic Review
2023
Finite element modelling of the lumbar spine is a challenging problem. Lower back pain is among the most common pathologies in the global populations, owing to which the patient may need to undergo surgery. The latter may differ in nature and complexity because of spinal disease and patient contraindications (i.e., aging). Today, the understanding of spinal column biomechanics may lead to better comprehension of the disease progression as well as to the development of innovative therapeutic strategies. Better insight into the spine’s biomechanics would certainly guarantee an evolution of current device-based treatments. In this setting, the computational approach appears to be a remarkable …
SIMULATION OF NONUNIFORM SEDIMENT TRANSPORT AT DIFFERENT DISTANCES FROM THE OUTLET
2012
Analisi numerica degli effetti della deformazione di membrane a scambio ionico sulla distribuzione dei fluidi in canali di Elettrodialisi
2019
L’elettrodialisi (ED) è una promettente tecnologia a membrana utilizzata in diversi campi, ad esempio nella dissalazione delle acque e nell’industria alimentare. L’ED usa un potenziale elettrico per indurre una migrazione selettiva di cationi ed anioni da una soluzione elettrolitica ad un’altra, sfruttando membrane a scambio ionico. Membrane anioniche e cationiche sono alternativamente collocate all’interno di una unità ED. A queste sono solitamente interposti spaziatori che prevengono il contatto tra le membrane e delineano i canali in cui scorrono le soluzioni. L’utilizzo di membrane profilate consente di costruire unità prive di tradizionali spaziatori a rete non conduttivi. In genere, l…
Die Zauber-"Wintersaat". Ein Vergleich zwischen Thomas Manns "Zauberberg" und Wacław Berents "Wintersaat"
2020
The author carries out a comparative analysis of Wacław Berents “Winter Crop” (Ozimina) and Thomas Manns “The Magic Mountain” (Der Zauberberg). Although the two compared novels are of different historical and cultural backgrounds, she shows things that they have in common. The analysis does not concentrate on the interrelations that were realised at the time but on tracking down the sources of the two writers’ imagination, intellectual fascinations, disturbing similarities (and obvious differences) that led to building up the world they created and also in the finesse of their language. The author draws a map of “mental spurts”, “spiritual colouration” and early 20th century History echoing…
Evaluer les choix d'itinéraires en milieu urbain
2007
ACL; International audience; La revalorisation de la marche à pied comme mode de déplacement en milieu urbain implique que l'on dispose de connaissances toujours plus précises sur les pratiques des piétons, notamment en ce qui concerne les choix d'itinéraires parmi un ensemble d'alternatives potentielles. Dans cette perspective, nous proposons d'appliquer aux déplacements piétonniers les modèles d'affectation probabilistes de flux, habituellement utilisés pour les modes de transport motorisés. Ces modèles sont fondés sur des hypothèses relatives au comportement des individus ; à ce titre, nous les considérons comme des outils de simulation permettant de tester des comportements pédestres va…
Effets de la distance et dépendance d’échelles dans les modèles géographiques de villes et de territoires
2020
International audience
L’apport de la simulation multi-agent du trafic routier pour l’estimation des pollutions atmosphériques automobiles
2015
National audience; La pollution atmosphérique est aujourd’hui considérée comme cancérigène pour la santé humaine (OMS, 2013). Avec le bruit, elle est l’une des premières nuisances directement ressenties par les populations en milieu urbain. Son évaluation présente un véritable enjeu pour les pouvoirs publics afin de mieux en identifier ses sources, ses impacts en vue de définir des politiques territoriales (PDU, cadastre d’émission). A l’échelle locale, la pollution atmosphérique est à relier directement à l’intensité des sources d’émissions qui vont accentuer, ou non, la qualité de l’air extérieure (Elichegaray, 2010) . En milieu urbain, le premier contributeur en émission de NOx, CO, ou P…